CN213576839U - Liquid speculum - Google Patents

Abstract

The application relates to a liquid sight glass, belonging to a monitoring device of aviation oil equipment, comprising a shell, a window component and a valve ball component; a cavity is arranged in the shell, and two ends of the cavity are provided with viewing windows; the outer wall of the shell is also provided with a liquid inlet pipe and a liquid outlet pipe which are communicated with the cavity; the central axes of the liquid inlet pipe and the liquid outlet pipe are vertical to the central axis of the cavity; the window assembly is connected with the shell and seals the window openings at the two ends of the cavity; the valve ball component is connected to the liquid outlet pipe. The utility model provides a liquid peeps the ware and is convenient for observe inside seepage and the concrete seepage condition whether of shuttle check valve, makes the staff in time discover and carry out inspection or maintenance, has promoted the security of oil transportation, has effectively improved the efficiency of oil transportation, has saved the oil cost of transportation.

Description

Liquid speculum

Technical Field

The application relates to the field of aviation oil equipment monitoring, in particular to a liquid speculum.

Background

With the development of industrial technology, the transmission and storage of oil in the fields of aviation and petrochemical industry become more and more important. The oil is used as a power source for aviation or used for storage and transportation in places such as gas stations, and the like, so that the safety and the purity are very high.

At present, oil transportation monitoring systems such as aviation and petrochemical systems adopt check valves, particularly shuttle check valves, to control oil transportation in pipelines. If the oil quality has problems, the sealing performance of a sealing mechanism in the shuttle check valve is affected, and the oil leakage condition is caused.

In view of the above-mentioned related art, the inventors have considered that the leakage of the shuttle check valve is not easily discovered, and the worker may not be able to timely discover and perform inspection or repair.

SUMMERY OF THE UTILITY MODEL

In order to facilitate observation of whether the inside of the shuttle check valve leaks, the staff can timely find and check or maintain, and the application provides a liquid speculum.

The application provides a liquid speculum adopts following technical scheme:

a liquid speculum comprises a shell, a window assembly and a valve ball assembly; a cavity is arranged in the shell, and two ends of the cavity are provided with viewing windows; the outer wall of the shell is also provided with a liquid inlet pipe and a liquid outlet pipe which are communicated with the cavity; the central axes of the liquid inlet pipe and the liquid outlet pipe are vertical to the central axis of the cavity; the window assembly is connected with the shell and seals the window openings at the two ends of the cavity; the valve ball component is connected to the liquid outlet pipe.

Through adopting above-mentioned technical scheme, the symmetry is provided with feed liquor pipe and drain pipe on the casing outer wall, feed liquor pipe and drain pipe and cavity intercommunication. When the shuttle check valve leaks, the leaked liquid may flow through the inlet pipe into the interior chamber of the housing. The valve ball assembly connected to the liquid outlet pipe controls the liquid outlet pipe to be closed, so that leaked liquid is reserved in the cavity, the liquid level rises along with the increase of the leaked liquid, a worker can timely observe the liquid leakage through the window assembly, and the pipeline is inspected or maintained.

Optionally, the window assembly comprises at least two glass sheets and glass press covers corresponding to the glass sheets one to one, and the glass press covers are provided with observation holes; the glass sheet is arranged on the viewing window and is pressed and fixed on the shell through the glass gland.

Through adopting above-mentioned technical scheme, the glass piece sets up in the window of looking of casing, can observe the liquid seepage condition through the glass piece. The glass pressing cover is pressed on the shell and plays a role in fixing the glass sheet.

Optionally, a step is formed at the window of the shell, the glass sheet abuts against the step, and the glass pressing cover is in threaded connection with the shell to press the glass sheet on the step.

By adopting the technical scheme, a step for placing the glass sheet is formed at the window in the shell, and the glass sheet is abutted against the step; the glass pressing cover compresses the glass sheet to fix the glass sheet.

Optionally, the glass gland is in threaded connection with the housing.

Through adopting above-mentioned technical scheme, adopt threaded connection's mode between glass gland and the casing for glass gland is more convenient and fast when installation or dismantlement.

Optionally, a glass gasket is disposed between the step and the glass sheet.

Through adopting above-mentioned technical scheme, the glass sealing gasket is placed between step and glass piece, has guaranteed the leakproofness of casing. When a liquid leak occurs, the leaked liquid does not flow into the gap between the step and the glass sheet.

Optionally, an anti-extrusion pad is arranged between the glass sheet and the glass gland.

Through adopting above-mentioned technical scheme, prevent that the extrusion pad is placed between glass piece and glass gland. In the process of screwing the glass gland, the glass gland can generate larger compression force to the glass sheet, the anti-extrusion pad is used for protecting the glass sheet, and the condition that the glass sheet is damaged due to overlarge compression force is reduced.

Optionally, the valve ball assembly comprises a valve ball, a valve shaft and a valve handle; the valve ball is arranged in the liquid outlet pipe, the valve shaft is fixedly connected with the valve ball, and the valve handle is fixedly connected with the valve shaft.

Through adopting above-mentioned technical scheme, the valve ball is located the drain pipe and with valve shaft fixed connection, valve handle and valve shaft fixed connection. The valve shaft is driven by rotating the valve handle, so that the valve ball is driven, and the opening and closing of the inner passage of the liquid outlet pipe are realized.

Optionally, a valve sealing member is arranged between the valve ball and the liquid outlet of the housing; the same valve sealing element is arranged between the valve ball and the liquid outlet of the liquid outlet pipe.

Through adopting above-mentioned technical scheme, the valve seal spare is used for strengthening the leakproofness between casing and the valve ball and the leakproofness between valve ball and drain pipe.

Optionally, the liquid speculum further comprises an auxiliary prompt component; the auxiliary prompting component comprises a suspension component, a connecting piece and a display component; the hanging piece is arranged in the liquid inlet pipe in an overlapping mode, the display piece is connected with the hanging piece through the connecting piece, and the display piece is located below the hanging piece and is hung in the cavity.

By adopting the technical scheme, the suspension part is erected in the liquid outlet pipe, and the display part is suspended in the cavity through the connection of the connecting part; the operator can observe whether there is liquid leakage through the change of the display member.

Optionally, the suspension member is two first cross-shaped suspension rods; the connecting piece comprises a connecting rod which is fixedly connected to the intersection point of the two first lapping rods; the display part comprises a mounting ring and test paper, the test paper is fixed on the lower surface of the mounting ring, and the projection of the inner diameter of the liquid inlet on the test paper falls within the range of the test paper.

Through adopting above-mentioned technical scheme, the pendant is two criss-cross first agraffes, and the connecting piece is a connecting rod, and the connecting rod is fixed at the intersection point of two criss-cross first agraffes. The display member includes a mounting ring and a test paper, the mounting ring being connected to the hanger member by a connecting rod and suspended within the chamber. The mounting ring is covered with detachable test paper, when only a small amount of liquid leaks, the test paper is dripped from the liquid inlet, so that the test paper is infected by the leaked liquid, the test paper changes, and a worker can be reminded to inspect or maintain the pipeline.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through the liquid sight on connecting the shuttle check valve, when the liquid seepage, the liquid of seepage flows to the casing cavity in from the inlet pipe, and the valve ball subassembly control drain pipe of connection on the drain pipe closes, and the liquid with the seepage is saved in the casing cavity. The staff can observe and in time discover the condition of liquid seepage such as oil in the pipeline through the sight window at casing cavity both ends, inspect and maintain. The safety and the efficiency of oil transportation are improved, and the oil transportation cost is reduced;

2. by arranging the glass sheet on the viewing window, a worker can observe the condition in the cavity through the glass sheet, so that whether liquid leaks or not can be known, and the condition can be checked or maintained, so that the transportation safety is improved;

3. the liquid outlet is controlled by arranging the valve ball assembly, when liquid leaks into the cavity, a worker can select to flow the liquid in the cavity to a liquid discharging position through the liquid outlet or hold the liquid by using a container to detect the liquid, so that the purity of the liquid is ensured;

4. through setting up supplementary suggestion subassembly, when the condition that has a small amount of liquid seepage appears, also can remind the staff in time, inspect or maintain the pipeline, improved the reliability of equipment and the security of transportation.

Drawings

Fig. 1 is an overall configuration diagram of a liquid speculum according to an embodiment of the present application.

Fig. 2 is a side view of a liquid speculum according to an embodiment of the present application.

Fig. 3 is a sectional view taken along line a-a of fig. 2.

Fig. 4 is a front view of a liquid speculum according to an embodiment of the present application.

FIG. 5 is a cross-sectional view of the window assembly taken along line B-B of FIG. 4.

Fig. 6 is a schematic cross-sectional view of a valve ball assembly of a liquid speculum according to an embodiment of the present application.

Fig. 7 is a schematic cross-sectional view of another embodiment of a liquid speculum according to an embodiment of the present application.

Fig. 8 is a schematic structural diagram of an auxiliary prompt component of another embodiment of a liquid speculum according to the embodiment of the application.

Description of reference numerals: 1. a housing; 11. a chamber; 111. a viewing window; 12. a liquid inlet pipe 12; 121. a rubber inner liner ring; 122. flattening the groove; 13. a liquid outlet pipe; 2. a window assembly; 21. a glass sheet; 22. glass pressing covers; 23. a glass gasket; 24. an anti-extrusion pad; 25. an annular step; 3. a valve ball assembly; 31. a valve ball; 32. a valve shaft; 33. a valve handle; 34. a valve seal; 35. a shaft end gland bush; 36. a bolt; 37. a flange sheet; 38. a screw; 4. an auxiliary prompt component; 41. a suspension member; 411. a first butt strap; 42. a display member; 421. a mounting ring; 4211. a second lapping rod; 422. test paper; 43. a connecting rod.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses a liquid speculum. Referring to fig. 1, the liquid speculum includes a stainless steel housing 1 having a cylindrical shape, a window assembly 2, and a valve ball assembly 3. A liquid inlet pipe 12 and a liquid outlet pipe 13 are arranged on the outer wall of the circumferential surface of the shell 1, and the liquid inlet pipe 12 and the liquid outlet pipe 13 are welded on the shell 1. The stainless steel cylindrical shell 1 adopted in the embodiment of the application can bear high pressure and has strong impact resistance; and the appearance is beautiful, the maintenance is convenient, and the service life is long.

Referring to fig. 2 and 3, a cavity 11 is provided inside the housing 1, the liquid inlet pipe 12 and the liquid outlet pipe 13 are communicated with the cavity 11, and the central axes of the liquid inlet pipe 12 and the liquid outlet pipe 13 are perpendicular to the central axis of the cavity 11. The two ends of the chamber 11 are both provided with viewing windows 111, and the viewing window assembly 2 is connected with the shell 1 to seal the viewing windows 111 at the two ends of the chamber 11. When the liquid peeping device works, a worker can observe the inside of the cavity 11 through the viewing windows 111 at the two ends of the cavity 11 to check whether liquid leakage occurs or not, and then check or maintain the pipeline in time.

During operation of the device, the inlet pipe 12 welded to the housing 1 is aligned with the shuttle check valve. The outer surface of the liquid inlet pipe 12 is symmetrically provided with a flat groove 122 matched with a wrench for use, the bottom surface of the flat groove 122 is parallel to the horizontal plane of the liquid inlet pipe 12, and the side surface of the flat groove 122 is perpendicular to the bottom surface of the flat groove 122. The internal thread and the rubber lining ring 121 are sequentially arranged in the liquid inlet pipe 12 along the liquid inlet direction, the liquid inlet pipe 12 is in threaded connection with the shuttle check valve, the liquid outlet of the shuttle check valve is screwed to the position of the rubber lining ring 121, the rubber lining ring 121 can reduce impact and abrasion of the shuttle check valve on the liquid inlet pipe 12 of the liquid speculum to a certain extent, and the service life of the liquid speculum is prolonged.

When the liquid speculum is used, the liquid inlet pipe 12 is aligned to the shuttle check valve, the opening of the wrench is close to the side surface of the flat groove 122 by using the wrench, and the opening is tightly pressed on the side surface of the flat groove 122; then the wrench is clamped on the bottom surface of the flat groove 122, so that the wrench is fully attached to the liquid inlet pipe 12, the wrench is rotated to drive the liquid inlet pipe 12, and the liquid inlet pipe 12 is abutted against the shuttle check valve.

Referring to fig. 4 and 5, the window assembly 2 is installed at the position of the window 111 at both ends of the chamber 11. The window assembly 2 includes two sets of glass sheets 21 and glass covers 22, which correspond to the windows 111 at the two ends of the chamber 11. Since the windows 111 at both ends of the chamber 11 are the same in the embodiment of the present application, and the glass sheet 21 and the glass cover 22 are both made of the same material and shape, only the structure of the window assembly 2 disposed at one of the windows 111 will be described here.

In the embodiment of the present application, the glass sheet 21 disposed at one end of the viewing window 111 may be a tempered glass sheet 21, and the size of the tempered glass sheet is the same as that of the viewing window 111 or slightly smaller than that of the viewing window 111. The glass gland 22 may be circular, and the center thereof is provided with an observation hole, and the outer surface of the glass gland is provided with external threads. In this embodiment, the glass cover 22 may be made of stainless steel.

In the embodiment of the application, an annular step 25 with a diameter slightly smaller than that of the viewing window 111 is configured at the viewing window 111 inside the housing 1, the glass sheet 21 is abutted against the annular step 25 during installation, the glass sheet 21 is pressed against the annular step 25 by the glass gland 22, and the glass gland 22 is in threaded connection with the housing 1. Similarly, the glass cover 22 and the housing 1 may be connected by riveting or bonding.

Of course, the glass sheet 21 and the glass gland 22 may be combined into a whole, and in one embodiment, the glass sheet 21 and the glass gland 22 may be bonded together, and then the glass gland 22 is connected to the housing 1; the glass sheet 21 can also be arranged at the observation hole of the glass gland 22 and is jointed with the inner wall of the ring body of the glass gland 22, and then the glass gland 22 is connected with the shell 1.

Referring primarily to fig. 5, an annular glass gasket 23 is provided between the annular step 25 and the glass sheet 21 to reduce liquid leakage into the gap between the glass and the annular step 25.

When the glass sheet 21 is pressed by the glass cover 22, there may be a case where the glass sheet 21 is damaged due to an excessive impact force from the glass cover 22 during the pressing. In order to solve the problem, an anti-extrusion pad 24 is arranged between the glass sheet 21 and the glass gland 22, so that impact force caused in the compression process of the glass gland 22 can be relieved to a certain extent, the safety of the glass sheet 21 is protected, and the service life of equipment is prolonged.

In the embodiment of the present application, the glass sealing gasket 23 is made of a nitrile oil-resistant rubber material with good oil resistance, and the anti-extrusion gasket 24 is made of a white nylon material with good abrasion resistance.

Referring to fig. 6, ball assembly 3 is fixedly attached to the circumferential surface of outlet pipe 13. The valve ball assembly 3 comprises a valve ball 31, a valve shaft 32 and a valve handle 33; the valve ball 31 is disposed in the liquid outlet pipe 13, and has a gap with the inner wall of the liquid outlet pipe 13. A valve sealing member 34 is arranged between the shell 1 and the valve ball 31, and a valve sealing member 34 is also arranged between the liquid outlet of the liquid outlet pipe 13 and the valve ball 31; the valve seal 34 is annular and trapezoidal in cross-section; the larger bottom side of the valve seal 34 is tangent to the valve ball 31. The surface of the valve ball 31 is provided with a groove, one end of the valve shaft 32 is fixed in the groove, and the other end is fixedly connected with the valve handle 33.

Ball assembly 3 further includes a shaft end gland 35 and a bolt 36. The valve shaft 32 is fixed on the side surface of the liquid outlet pipe 13 through a shaft end gland 35, and the shaft end gland 35 and the liquid outlet pipe 13 are fixed through a bolt 36. A flange piece 37 is arranged at the liquid outlet of the liquid outlet pipe 13 and used for limiting the position of the valve ball 31, and the flange piece 37 is fixed at the liquid outlet through a screw 38.

When the liquid speculum works, the valve handle 33 is in a horizontal state, and the valve ball 31 closes the internal passage of the liquid outlet pipe 13. If the pipeline leaks, leaked liquid flows into the cavity 11 through the liquid inlet, the liquid outlet is closed, the liquid level in the cavity 11 rises, and a worker observes and finds the pipeline leakage through the sight window 111 and closes the shuttle type check valve. At this time, by rotating the valve handle 33 to the vertical state, the liquid in the chamber 11 can be discharged to the liquid discharge port or collected by the container, and the purity of the liquid can be detected.

However, when a small liquid leak, even a single drop of liquid leak, occurs, there is no significant change in the chamber 11, so that the worker may not be able to find the liquid leak in time. In order to solve this problem, the liquid speculum according to the embodiment of the present application is further provided with an auxiliary prompt component 4.

Referring to fig. 7 and 8, the auxiliary cue assembly 4 comprises a suspension member 41, a connecting member and a display member 42.

Wherein, the hanging part 41 comprises two first cross-shaped hitching bars 411; the connecting piece comprises a connecting rod 43, the connecting rod 43 is fixedly connected to the intersection point of the two first access bars 411, and the connecting rod 43 is vertical to the plane formed by the two first access bars 411 which are crossed; the display member 42 comprises a mounting ring 421 and test paper 422, the diameter of the mounting ring 421 is slightly smaller than the inner diameter of the liquid inlet pipe 12, a second tie rod 4211 passing through the center of a circle is arranged inside the mounting ring 421, and the other end of the connecting rod 43 is fixedly connected to the center of the second tie rod 4211; the test paper 422 is adhered to the lower surface of the mounting ring 421, and the projection of the liquid inlet pipe 12 on the test paper 422 falls within the range of the test paper 422, so that when a small amount of liquid leaks, the leaked liquid can drip on the test paper 422.

In preparation for installing the liquid speculum, the auxiliary indication member 4 needs to be installed in the housing 1. Bonding the test paper 422 on the lower surface of the mounting ring 421, and extending the mounting ring 421 into the chamber 11 through the liquid inlet pipe 12; an annular step is constructed above the rubber lining ring 121 in the liquid inlet pipe 12; the connection rod 43 is connected to the mounting ring 421 and the hanger 41 connected at the other end is placed on the step. Of course, the rubber inner lining ring 121 may be provided with a groove for matching with the hanging member 41, so as to improve the stability of the auxiliary prompting assembly.

When a small amount of liquid leaks from the pipeline, the liquid drops on the test paper 422 through the liquid inlet pipe 12; the dipstick 422 is affected by the liquid, for example: the oil drops on the test paper 422, and the test paper 422 is polluted and discolored, so that a worker can observe the change of the test paper 422 to check or maintain the pipeline.

In order to more clearly show the principle of the liquid speculum according to the embodiment of the present application, a method for using the liquid speculum is described below:

the liquid speculum in the embodiment of the application is used for matching with the shuttle type check valve. First, the liquid inlet pipe 12 of the liquid speculum is aligned with the shuttle check valve, and the liquid speculum is connected with the shuttle check valve by rotating the spanner. At this time, valve handle 33 is in a horizontal state, and control valve ball 31 closes the liquid outlet of liquid outlet pipe 13.

When a small amount of liquid leaks, the staff can find the change of the test paper 422 in time to inspect or maintain the pipeline.

When the liquid seepage was serious, the liquid level of seepage liquid rose in the cavity 11, and the staff observes the change in the cavity 11 through the sight window 111 at cavity 11 both ends, in time closes shuttle check valve, avoids appearing bigger loss. The liquid in the chamber 11 can be discharged through the liquid outlet; or collecting with a container, and detecting the purity of the liquid.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. A liquid speculum, characterized in that: comprises a shell (1), a window component (2) and a valve ball component (3); a cavity (11) is arranged in the shell (1), and two ends of the cavity (11) are provided with viewing windows (111); a liquid inlet pipe (12) and a liquid outlet pipe (13) which are communicated with the cavity (11) are also arranged on the outer wall of the shell (1); the central axes of the liquid inlet pipe (12) and the liquid outlet pipe (13) are vertical to the central axis of the cavity (11); the window assembly (2) is connected with the shell (1) and seals the window openings (111) at two ends of the chamber (11); the valve ball component (3) is connected to the liquid outlet pipe (13).

2. The liquid speculum of claim 1, wherein: the window assembly (2) comprises at least two glass sheets (21) and glass press covers (22) corresponding to the glass sheets (21) one by one, and the glass press covers (22) are provided with observation holes; the glass sheet (21) is arranged on the viewing window (111) and is pressed and fixed on the shell (1) through the glass pressing cover (22).

3. The liquid speculum of claim 2, wherein: the casing (1) is provided with an annular step (25) at the viewing window (111), the glass sheet (21) abuts against the annular step (25), and the glass gland (22) presses the glass sheet (21) against the annular step (25).

4. The liquid speculum of claim 3, wherein: the glass gland (22) is in threaded connection with the shell (1).

5. The liquid speculum of claim 3, wherein: and a glass sealing gasket (23) is arranged between the annular step (25) and the glass sheet (21).

6. The liquid speculum of claim 2, wherein: an anti-extrusion pad (24) is arranged between the glass sheet (21) and the glass gland (22).

7. The liquid speculum of claim 1, wherein: the valve ball (31) assembly comprises a valve ball (31), a valve shaft (32) and a valve handle (33); the valve ball (31) is arranged in the liquid outlet pipe (13), the valve shaft (32) is fixedly connected with the valve ball (31), and the valve handle (33) is fixedly connected with the valve shaft (32).

8. The liquid speculum of claim 7, wherein: a valve sealing member (34) is arranged between the valve ball (31) and the liquid outlet of the shell (1); and the same valve sealing piece (34) is arranged between the valve ball (31) and the liquid outlet of the liquid outlet pipe (13).

9. The liquid speculum of claim 1, wherein: the liquid speculum also comprises an auxiliary prompt component (4); the auxiliary prompting component (4) comprises a suspension piece (41), a connecting piece and a display piece (42); the suspension member (41) is erected in the liquid inlet pipe (12), the display member (42) is connected with the suspension member (41) through the connecting member, and the display member (42) is positioned below the suspension member (41) and suspended in the chamber (11).

10. The liquid speculum of claim 9, wherein: the hanging piece (41) is two first cross lapping rods (411); the connecting piece comprises a connecting rod (43), and the connecting rod (43) is fixedly connected to the intersection point of the two first lapping rods (411); the display member (42) comprises a mounting ring (421) and a test paper (422), the test paper (422) is fixed on the lower surface of the mounting ring (421), and the projection of the inner diameter of the liquid inlet on the test paper (422) falls within the range of the test paper (422).

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